High-Speed Graphene-based Sub-Terahertz Receivers enabling Wireless Communications for 6G and Beyond
Karuppasamy Pandian Soundarapandian, Sebastián Castilla, Stefan M. Koepfli, Simone Marconi, Laurenz Kulmer, Ioannis Vangelidis, Ronny de la Bastida, Enzo Rongio… 展开作者
Karuppasamy Pandian Soundarapandian, Sebastián Castilla, Stefan M. Koepfli, Simone Marconi, Laurenz Kulmer, Ioannis Vangelidis, Ronny de la Bastida, Enzo Rongione, Sefaattin Tongay, Kenji Watanabe, Takashi Taniguchi, Elefterios Lidorikis, Klaas-Jan Tielrooij, Juerg Leuthold, Frank H. L. Koppens
In recent years, the telecommunications field has experienced an unparalleled proliferation of wireless data traffic. Innovative solutions are imperative to circumvent the inherent limitations of the current technology, in particular in terms of capacity. Carrier frequencies in the sub-terahertz (sub-THz) range (~0.2-0.3 THz) can deliver increased capacity and low attenuation for short-range wireless applications. Here, we demonstrate a direct, passive and compact sub-THz receiver based on graphene, which outperforms state-of-the-art sub-THz receivers. These graphene-based receivers offer a cost-effective, CMOS-compatible, small-footprint solution that can fulfill the size, weight, and power consumption (SWaP) requirements of 6G technologies. We exploit a sub-THz cavity, comprising an antenna and a back mirror, placed in the vicinity of the graphene channel to overcome the low inherent absorption in graphene and the mismatch between the areas of the photoactive region and the incident radiation, which becomes extreme in the sub-THz range. The graphene receivers achieve a multigigabit per second data rate with a maximum distance of ~3 m from the transmitter, a setup-limited 3 dB bandwidth of 40 GHz, and a high responsivity of 0.16 A/W, enabling applications such as chip-to-chip communication and close proximity device-to-device communication.
All-photonic W-band terahertz receiver based on THz-to-optical carrier conversion with soliton microcomb dual carriers for high-speed OOK wireless transmission
Graduate School of Sciences and Technology for Innovation, Tokushima University（德岛大学科学技术研究生院）；Institute of Post-LED Photonics (pLED), Tokushima University（德岛大学后LED光子学研究所）；Institute of Photonics and Human Health Frontier (IPHF), Tokushima University（德岛大学光子学与人类健康前沿研究所）；Center for Higher Education and Digital Transformation, University of Yamanashi（山梨大学高等教育与数字化转型中心）；National Institute of Information and Communications Technology（信息通信技术研究所）；Department of Electrical, Electronic and Computer Engineering, Gifu University（岐阜大学电气电子计算机工程系）；Department of Electrical and Mechanical Engineering, Nagoya Institute of Technology（名古屋工业大学电气机械工程系）
Wireless data transmission in a 560-GHz band using low-phase-noise terahertz wave generated by photomixing of a pair of distributed feedback lasers injection-locking to Kerr micro-resonator soliton comb
Resonant tunneling diode-integrated terahertz transceiver module for wireless communications
Graduate School of Engineering Science, The University of Osaka（大阪大学工学研究科）；Terahertz Engineering Laboratory, Adelaide University（阿德莱德大学太赫兹工程实验室）；Osaka Research Institute of Industrial Science and Technology（大阪产业技术综合研究所）；ROHM Co. Ltd.（罗姆有限公司）；Graduate School of Science, The University of Tokyo（东京大学理学研究科）
Carrier conversion from terahertz wave to dual-wavelength near-infrared light injection-locking to optical comb using asynchronous nonpolarimetric electro-optic downconversion with electro-optic polymer modulator
